Study of the Cloud Point of C12 E6 Nonionic Surfactant: Effect of Additives
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M. Alibrahim
Abstract
Addition of electrolytes to surfactant solutions does change the temperature at which the clouding phenomena occur. Electrolytes have a large effect on the cloud point (CP) of hexa ethyleneglycol mono-n-dodecyl ether (C12 E6)/water system, because of their effect on water structure and their hydrophilicity. In this work we report the effect of electrolytes (KCl, NaCl and Na2CO3) on the (CP) of C12 E6/water system. It has been observed that the cloud point as a function of electrolyte's concentration, depends mostly on the electrolyte's charge. Furthermore it has been observed that the two factors, temperature and salt concentration mainly affect equivalently the phase separation of C12 E6/water system. Moreover, ionic surfactants such as sodium dodecyl sulfate (SDS) and carboxylate ethoxyle (TDC) have been used to investigate their effect on CP of C12 E6.
Kurzfassung
Die Zugabe von Elektrolyten zu Tensidlösungen verändert die Temperatur, bei welcher Trübungsphänomene auftreten. Aufgrund ihres Effektes auf die Wasserstruktur und ihrer Hydrophilie haben Elektrolyte einen großen Einfluss auf den Trübungspunkt eines Hexaethylen-glykolmono-n-dodecylether(C12 E6)/Wasser-Systems. In dieser Arbeit untersuchen wir den Einfluß von Elektrolyten (KCl, NaCl und Na2CO3) auf den Trübungspunkt eines C12 E6/Wasser-Systems. Es wurde beobachtet, dass der Trübungspunkt als Funktion der Elektrolytkonzentration hauptsächlich vom Elektrolyt-Anion abhängt. Außerdem konnten wir feststellen, dass hauptsächlich die zwei Faktoren Temperatur und Salzkonzentration, gleichermaßen die Phasentrennung des C12 E6/Wasser-Systems beeinflussen. Weiterhin wurde der Einfluss ionischer Tenside, wie z. B. Natriumdodecylsulfat und carboxyliertes Ethoxylat auf den Trübungspunkt von C12 E6 untersucht.
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© 2005, Carl Hanser Publisher, Munich
Articles in the same Issue
- Contents/Inhalt
- Contents
- Abstracts
- Abstracts
- Analysis
- Ultrasonic Extraction and TLC Determination of Surfactants in Laundry Wastewaters
- Environmental Chemistry
- Rapeseed Methyl Ester Ethoxylates: A New Class of Surfactants of Environmental and Commercial Interest
- Physical Chemistry
- Effect of Counterions and Temperature on the Association and Partition Balances of Hexadecylpyridinium Halides in Aqueous Solutions
- Study of the Cloud Point of C12 E6 Nonionic Surfactant: Effect of Additives
- Oxo-Alcohol Ethoxylates: Surface and Thermodynamic Properties and Effect of Various Additives on the Cloud Point
- Revision of the Adsorption Behavior of the Non-ionic Surfactant Tetraoxyethylene Decylether C10 E4 at the Water/Air Interface
- Synthesis
- Synthesis and Surfactant Properties of Triethanolammonium Salts of N-Acylated N-Carboxyethylglycine
Articles in the same Issue
- Contents/Inhalt
- Contents
- Abstracts
- Abstracts
- Analysis
- Ultrasonic Extraction and TLC Determination of Surfactants in Laundry Wastewaters
- Environmental Chemistry
- Rapeseed Methyl Ester Ethoxylates: A New Class of Surfactants of Environmental and Commercial Interest
- Physical Chemistry
- Effect of Counterions and Temperature on the Association and Partition Balances of Hexadecylpyridinium Halides in Aqueous Solutions
- Study of the Cloud Point of C12 E6 Nonionic Surfactant: Effect of Additives
- Oxo-Alcohol Ethoxylates: Surface and Thermodynamic Properties and Effect of Various Additives on the Cloud Point
- Revision of the Adsorption Behavior of the Non-ionic Surfactant Tetraoxyethylene Decylether C10 E4 at the Water/Air Interface
- Synthesis
- Synthesis and Surfactant Properties of Triethanolammonium Salts of N-Acylated N-Carboxyethylglycine